Hankel transform of central coefficients of (1+k*x-2x^2)^n, k arbitrary integer.

A127945

Hankel transform of central coefficients of (1+k*x-2x^2)^n, k arbitrary integer.

Terms

    a(0) =1a(1) =-4a(2) =-32a(3) =512a(4) =16384a(5) =-1048576a(6) =-134217728a(7) =34359738368

External references